Year	National currency per current international dollar
1980	1.249
1981	1.154
1982	1.114
1983	1.122
1984	1.149
1985	1.094
1986	0.98
1987	1.009
1988	1.01
1989	1.015
1990	1.016
1991	1.033
1992	1.034
1993	1.051
1994	1.069
1995	1.085
1996	1.105
1997	1.124
1998	1.206
1999	1.19
2000	1.269
2001	1.222
2002	1.241
2003	1.258
2004	1.299
2005	1.323
2006	1.335
2007	1.364
2008	1.477
2009	1.378
2010	1.413
2011	1.459
2012	1.446
2013	1.424
2014	1.432
2015	1.411
2016	1.423
2017	1.45
2018	1.431
2019	1.435
2020	1.437
2021	1.441
2022	1.447
2023	1.453
2024	1.46